I want to merge the first items in two different arrays into one.

var arr = [];

var arr2 = [];

var year = ["January 2022", "February 2022", "March 2022", "April 2022", "May 2022"];

var value = [600000, 900000, 180000, 600000, 300000];

year.forEach(element => {
    arr.push({year: element});
});
                    
value.forEach(element2 => {
    arr2.push({value: element2});
});

The result I tried to achieve is this:

[
  {
    year: "January 2022",
    value: 600000
  }, {
    year: "February 2022",
    value: 900000
  }, {
    year: "March 2022",
    value: 180000
  }, {
    year: "April 2022",
    value: 600000
  }, {
    year: "May 2022",
    value: 300000
  }
];

So this is what I have tried but I am not getting the expected result yet:

var merged = arr.concat(arr2);

var newData = [];

merged.forEach(element => {
    newData.push({year: element.year, value: element.value});
});

console.log(newData);

CodePudding user response：

You could take an object with wanted keys and map the values for getting an array of objects.

This approach works for unlimited count of properties.

const
    getObjects = object => Object.entries(object).reduce((r, [k, a]) => a.map((v, i) => ({ ...r[i], [k]: v })), {}),
    year = ["January 2022", "February 2022", "March 2022", "April 2022", "May 2022"],
    value = [600000, 900000, 180000, 600000, 300000],
    result = getObjects({ year, value });

console.log(result);

CodePudding user response：

keeping with your logic I propose this:

var years = ["January 2022", "February 2022", "March 2022", "April 2022", "May 2022"];

var values = [600000, 900000, 180000, 600000, 300000];


function merger(years, values){
    if (years.length != values.length){
        console.log("Dog");
    }else {
        let merged = [];
        for(i=0; i < years.length; i   ){
            merged[i] = {year: years[i], value: values[i]};
        }
        return merged;
    }
}
console.log(merger(years, values));

it works!

CodePudding user response：

This will work if year array and value array has same length and same positions:

var year = ["January 2022", "February 2022", "March 2022", "April 2022", "May 2022"];

var value = [600000, 900000, 180000, 600000, 300000];

var result = [];


year.forEach((year, i) => result.push({year, value: value[i]}))